diff --git a/README.md b/README.md
index b3ff1f02..bd9fb5fe 100644
--- a/README.md
+++ b/README.md
@@ -132,6 +132,10 @@ CHANGELOG
 -------------
 
 Next release:
+
+- [gh-132](https://github.com/flintlib/python-flint/pull/132)
+  Add `fmpz_mpoly` and `fmpq_mpoly` types for multivariate polynomials with
+  integer or rational coefficients.
 - [gh-160](https://github.com/flintlib/python-flint/pull/160)
   Add `bits` to `arb` and `acb`, add `log_base` to `arb`.
 - [gh-148](https://github.com/flintlib/python-flint/pull/148)
@@ -139,7 +143,9 @@ Next release:
 - [gh-144](https://github.com/flintlib/python-flint/pull/144)
   Add `rel_one_ccuracy_bits` to `arb` and `acb`.
 - [gh-142](https://github.com/flintlib/python-flint/pull/142)
-  Add `acb_theta` module for the numerical evaluation of [theta functions](https://flintlib.org/doc/acb_theta.html) (only available for Flint >= 3.1).
+  Add `acb_theta` module for the numerical evaluation of [theta
+  functions](https://flintlib.org/doc/acb_theta.html) (only available for
+  `Flint >= 3.1`).
 - [gh-137](https://github.com/flintlib/python-flint/pull/137)
   Add `erfinv` and `erfcinv` for `arb`.
 - [gh-129](https://github.com/flintlib/python-flint/pull/129)
diff --git a/bin/bump_version.py b/bin/bump_version.py
new file mode 100755
index 00000000..79215a43
--- /dev/null
+++ b/bin/bump_version.py
@@ -0,0 +1,45 @@
+#!/usr/bin/env python
+
+filenames_default = [
+    "pyproject.toml",
+    "src/flint/__init__.py",
+    "doc/source/conf.py",
+    "src/flint/test/test_all.py",
+]
+
+def main(version2=None, *filenames):
+    """Bump version number in files.
+
+        $ bin/bump_version.py
+        Current version: 0.1.0
+
+        $ bin/bump_version.py 0.1.0 0.1.1
+        Set version 0.1.0 to 0.1.1 in:
+        pyproject.toml
+        src/flint/__init__.py
+        doc/source/conf.py
+        src/flint/test/test_all.py
+
+    """
+    with open("pyproject.toml", "r") as f:
+        text = f.read()
+    version1 = text.split("version = \"")[1].split("\"")[0]
+
+    if not version2:
+        print(f"Current version: {version1}")
+        return
+
+    if not filenames:
+        filenames = filenames_default
+
+    print(f"Set version {version1} to {version2} in:")
+    for filename in filenames:
+        print(filename)
+        with open(filename, "r") as f:
+            text = f.read()
+        with open(filename, "w") as f:
+            f.write(text.replace(version1, version2))
+
+if __name__ == "__main__":
+    import sys
+    main(*sys.argv[1:])
diff --git a/doc/source/conf.py b/doc/source/conf.py
index 58490337..80af22f6 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -51,9 +51,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '0.7.0a2'
+version = '0.7.0a3'
 # The full version, including alpha/beta/rc tags.
-release = '0.7.0a2'
+release = '0.7.0a3'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/pyproject.toml b/pyproject.toml
index 942ed29f..41c3bb15 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "mesonpy"
 [project]
 name = "python-flint"
 description = "Bindings for FLINT and Arb"
-version = "0.7.0a2"
+version = "0.7.0a3"
 urls = {Homepage = "https://github.com/flintlib/python-flint"}
 authors = [
     {name = "Fredrik Johansson", email = "fredrik.johansson@gmail.com"},
diff --git a/src/flint/__init__.py b/src/flint/__init__.py
index d0589530..e71bb15c 100644
--- a/src/flint/__init__.py
+++ b/src/flint/__init__.py
@@ -43,4 +43,4 @@
     Ordering,
 )
 
-__version__ = '0.7.0a2'
+__version__ = '0.7.0a3'
diff --git a/src/flint/test/test_all.py b/src/flint/test/test_all.py
index fdb10ea7..a10f867e 100644
--- a/src/flint/test/test_all.py
+++ b/src/flint/test/test_all.py
@@ -32,7 +32,7 @@ def raises(f, exception):
 
 def test_pyflint():
 
-    assert flint.__version__ == "0.7.0a2"
+    assert flint.__version__ == "0.7.0a3"
 
     ctx = flint.ctx
     assert str(ctx) == repr(ctx) == _default_ctx_string